When the ignition key is turned to the start position, current flows and
energizes the starter motor's solenoid coil.

The solenoid plunger and clutch shift lever are activated, and the clutch
pinion engages the ring gear.

The contacts close and the starter motor cranks. In order to prevent damage
caused by excessive rotation of the starter armature when the engine starts,
the clutch pinion gear overruns.

In conjunction with the ISG function, the starter motor must do a great
deal more work. The starter motor is therefore configured for a significantly
higher number of start cycles. The components of the starter motor have been
adapted to the higher requirements.

There are two kinds of starter, ISG type starter and the other.

When replace the starter, confirm that the part number and connector
shape.

ISG (Idle stop & go) system equipped vehicle always use the ISG
type starter only. If the other starter has installed, this can potentially
lead to engine electrical trouble or ISG system error.